What is tidal energy? How can it be harnessed ?
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Energy generated from tides is called tidal energy.
It can be harnesses by building dams at narrow openings of the sea.
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Tidal energy is one of the most reliable sources of renewable electricity. Unlike sunlight or wind, two high tides and two low tides are guaranteed every day.
Kinetic energy is harnessed by employing a setup that is similar to a wind turbine. The density of water is much higher that of air, so the kinetic energy that it can impart is also higher. Thus, the blades of a tidal turbine are smaller than that of wind turbine, as they can operate at lower velocities.
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